Vulnerability in Apache Nifi

CVE-2019-12421

When using an authentication mechanism other than PKI, when the user clicks Log Out in NiFi versions 1.0.0 to 1.9.2, NiFi invalidates the authentication token on the client side but not on the server side. This permits the user's client-side token to be used for up to 12 hours after logging out to make API requests to NiFi.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.7th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-12421: held from 0.018 to 0.018.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

  • Apache Nifi
  • Apache Nifi — versions Apache NiFi 1.0.0 to 1.10.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-12421?
CVE-2019-12421 is a high-severity vulnerability in Apache Nifi, classified under Insufficient Session Expiration. CVSS score: 8.8/10. Published 2019-11-19.
How severe is CVE-2019-12421?
High severity. CVSS v3 base score is 8.8 out of 10.